./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:41:55,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:41:55,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:41:55,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:41:55,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:41:55,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:41:55,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:41:55,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:41:55,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:41:55,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:41:55,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:41:55,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:41:55,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:41:55,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:41:55,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:41:55,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:41:55,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:41:55,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:41:55,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:41:55,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:41:55,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:41:55,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:41:55,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:41:55,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:41:55,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:41:55,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:41:55,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:41:55,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:41:55,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:41:55,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:41:55,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:41:55,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:41:55,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:41:55,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:41:55,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:41:55,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:41:55,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:41:55,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:41:55,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:41:55,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:41:55,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:41:55,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:41:55,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:41:55,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:41:55,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:41:55,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:41:55,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:41:55,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:41:55,588 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:41:55,588 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:41:55,588 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:41:55,589 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:41:55,589 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:41:55,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:41:55,589 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:41:55,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:41:55,590 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:41:55,590 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:41:55,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:41:55,591 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:41:55,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:41:55,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:41:55,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:41:55,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:41:55,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:41:55,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:41:55,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:41:55,594 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:41:55,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:41:55,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:41:55,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:41:55,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:41:55,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:41:55,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:41:55,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:41:55,597 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:41:55,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:41:55,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:41:55,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:41:55,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:41:55,598 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637c8df7181ab241b9f0175bf03e24d65a8b4c37f1a710a25ab16dc44ce41188 [2021-11-25 19:41:55,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:41:56,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:41:56,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:41:56,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:41:56,017 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:41:56,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-25 19:41:56,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/data/34bd6b3f7/62f4d9cbcbd44bfa807324b6b0bf29d4/FLAG484ac460f [2021-11-25 19:41:57,592 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:41:57,594 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-25 19:41:57,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/data/34bd6b3f7/62f4d9cbcbd44bfa807324b6b0bf29d4/FLAG484ac460f [2021-11-25 19:41:58,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/data/34bd6b3f7/62f4d9cbcbd44bfa807324b6b0bf29d4 [2021-11-25 19:41:58,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:41:58,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:41:58,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:41:58,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:41:58,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:41:58,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:41:58" (1/1) ... [2021-11-25 19:41:58,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276a2be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:41:58, skipping insertion in model container [2021-11-25 19:41:58,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:41:58" (1/1) ... [2021-11-25 19:41:58,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:41:58,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:42:05,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-25 19:42:05,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:42:06,092 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:42:06,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i[576599,576612] [2021-11-25 19:42:06,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:42:07,676 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:42:07,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07 WrapperNode [2021-11-25 19:42:07,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:42:07,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:42:07,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:42:07,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:42:07,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:08,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:08,547 INFO L137 Inliner]: procedures = 646, calls = 8206, calls flagged for inlining = 300, calls inlined = 249, statements flattened = 14997 [2021-11-25 19:42:08,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:42:08,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:42:08,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:42:08,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:42:08,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:08,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:08,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:08,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:09,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:09,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:09,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:09,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:42:09,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:42:09,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:42:09,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:42:09,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (1/1) ... [2021-11-25 19:42:09,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:42:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:42:09,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:42:09,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4d1b087-1cec-46f7-a419-752390651fa2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:42:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 19:42:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 19:42:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resolve_flow_ctrl [2021-11-25 19:42:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resolve_flow_ctrl [2021-11-25 19:42:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure load_rv2p_fw [2021-11-25 19:42:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure load_rv2p_fw [2021-11-25 19:42:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_bmsr1 [2021-11-25 19:42:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_bmsr1 [2021-11-25 19:42:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-25 19:42:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-25 19:42:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-25 19:42:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-25 19:42:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int [2021-11-25 19:42:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int [2021-11-25 19:42:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 19:42:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 19:42:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:42:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:42:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 19:42:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 19:42:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rxbd_rings [2021-11-25 19:42:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rxbd_rings [2021-11-25 19:42:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read_dword [2021-11-25 19:42:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read_dword [2021-11-25 19:42:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 19:42:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 19:42:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure get_l2_fhdr [2021-11-25 19:42:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure get_l2_fhdr [2021-11-25 19:42:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_stop [2021-11-25 19:42:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_stop [2021-11-25 19:42:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:42:10,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:42:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_start [2021-11-25 19:42:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_start [2021-11-25 19:42:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_int_mode [2021-11-25 19:42:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_int_mode [2021-11-25 19:42:10,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-25 19:42:10,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-25 19:42:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-25 19:42:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-25 19:42:10,083 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_bmsr1 [2021-11-25 19:42:10,083 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_bmsr1 [2021-11-25 19:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_forced_2g5 [2021-11-25 19:42:10,084 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_forced_2g5 [2021-11-25 19:42:10,084 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 19:42:10,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 19:42:10,085 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_xceiver_str [2021-11-25 19:42:10,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_xceiver_str [2021-11-25 19:42:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rx_context [2021-11-25 19:42:10,100 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rx_context [2021-11-25 19:42:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:42:10,102 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:42:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 19:42:10,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 19:42:10,102 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:42:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:42:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resume [2021-11-25 19:42:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resume [2021-11-25 19:42:10,103 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-25 19:42:10,103 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-25 19:42:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ctx_wr [2021-11-25 19:42:10,105 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ctx_wr [2021-11-25 19:42:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-25 19:42:10,105 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-25 19:42:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 19:42:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 19:42:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_remote_phy [2021-11-25 19:42:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_remote_phy [2021-11-25 19:42:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_data [2021-11-25 19:42:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_data [2021-11-25 19:42:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_phy [2021-11-25 19:42:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_phy [2021-11-25 19:42:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-25 19:42:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-25 19:42:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:42:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:42:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:42:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:42:10,110 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:42:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 19:42:10,110 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 19:42:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:42:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:42:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 19:42:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 19:42:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:42:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_napi [2021-11-25 19:42:10,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_napi [2021-11-25 19:42:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_read_phy [2021-11-25 19:42:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_read_phy [2021-11-25 19:42:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-25 19:42:10,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-25 19:42:10,115 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_request_irq [2021-11-25 19:42:10,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_request_irq [2021-11-25 19:42:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 19:42:10,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 19:42:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_wr_ind [2021-11-25 19:42:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_wr_ind [2021-11-25 19:42:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 19:42:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 19:42:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:42:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:42:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:42:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:42:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 19:42:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 19:42:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:42:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 19:42:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 19:42:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-25 19:42:10,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-25 19:42:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_mode [2021-11-25 19:42:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_mode [2021-11-25 19:42:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_intr [2021-11-25 19:42:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_intr [2021-11-25 19:42:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:42:10,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:42:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nic [2021-11-25 19:42:10,135 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nic [2021-11-25 19:42:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 19:42:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 19:42:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_wol [2021-11-25 19:42:10,143 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_wol [2021-11-25 19:42:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:42:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_addr [2021-11-25 19:42:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_addr [2021-11-25 19:42:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-11-25 19:42:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-11-25 19:42:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_nic [2021-11-25 19:42:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_nic [2021-11-25 19:42:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-25 19:42:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-25 19:42:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_msi [2021-11-25 19:42:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_msi [2021-11-25 19:42:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:42:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:42:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:42:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_error_detected [2021-11-25 19:42:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_error_detected [2021-11-25 19:42:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-25 19:42:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-25 19:42:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:42:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:42:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_skbs [2021-11-25 19:42:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_skbs [2021-11-25 19:42:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_channels [2021-11-25 19:42:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_channels [2021-11-25 19:42:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure __bnx2_free_irq [2021-11-25 19:42:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __bnx2_free_irq [2021-11-25 19:42:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_and_enable_2g5 [2021-11-25 19:42:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_and_enable_2g5 [2021-11-25 19:42:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 19:42:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 19:42:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 19:42:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 19:42:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_msix_tbl [2021-11-25 19:42:10,166 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_msix_tbl [2021-11-25 19:42:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int_sync [2021-11-25 19:42:10,166 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int_sync [2021-11-25 19:42:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 19:42:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 19:42:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_chip [2021-11-25 19:42:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_chip [2021-11-25 19:42:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_del_napi [2021-11-25 19:42:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_del_napi [2021-11-25 19:42:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-25 19:42:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-25 19:42:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_settings [2021-11-25 19:42:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_settings [2021-11-25 19:42:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:42:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:42:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-25 19:42:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-25 19:42:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure check_mips_fw_entry [2021-11-25 19:42:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mips_fw_entry [2021-11-25 19:42:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_start [2021-11-25 19:42:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_start [2021-11-25 19:42:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_rd [2021-11-25 19:42:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_rd [2021-11-25 19:42:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-25 19:42:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-25 19:42:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_link [2021-11-25 19:42:10,171 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_link [2021-11-25 19:42:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:42:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2021-11-25 19:42:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2021-11-25 19:42:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 19:42:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 19:42:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_enable [2021-11-25 19:42:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_enable [2021-11-25 19:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:42:10,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-25 19:42:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-25 19:42:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:42:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_wol [2021-11-25 19:42:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_wol [2021-11-25 19:42:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-25 19:42:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-25 19:42:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_pauseparam [2021-11-25 19:42:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_pauseparam [2021-11-25 19:42:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-25 19:42:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-25 19:42:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ioctl [2021-11-25 19:42:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ioctl [2021-11-25 19:42:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_timeout [2021-11-25 19:42:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_timeout [2021-11-25 19:42:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_one [2021-11-25 19:42:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_one [2021-11-25 19:42:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 19:42:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 19:42:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 19:42:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 19:42:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_find_info_keyword [2021-11-25 19:42:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_find_info_keyword [2021-11-25 19:42:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-25 19:42:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-25 19:42:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_acquire_nvram_lock [2021-11-25 19:42:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_acquire_nvram_lock [2021-11-25 19:42:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 19:42:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 19:42:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 19:42:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 19:42:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-25 19:42:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-25 19:42:10,180 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-25 19:42:10,180 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-25 19:42:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 19:42:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 19:42:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_access [2021-11-25 19:42:10,181 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_access [2021-11-25 19:42:10,181 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 19:42:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 19:42:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:42:10,182 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:42:10,182 INFO L130 BoogieDeclarations]: Found specification of procedure check_fw_section [2021-11-25 19:42:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fw_section [2021-11-25 19:42:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_settings [2021-11-25 19:42:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_settings [2021-11-25 19:42:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-25 19:42:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-25 19:42:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_run_loopback [2021-11-25 19:42:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_run_loopback [2021-11-25 19:42:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-25 19:42:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-25 19:42:10,204 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_disable [2021-11-25 19:42:10,204 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_disable [2021-11-25 19:42:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:42:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:42:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 19:42:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 19:42:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 19:42:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 19:42:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_write_dword [2021-11-25 19:42:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_write_dword [2021-11-25 19:42:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 19:42:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 19:42:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_task [2021-11-25 19:42:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_task [2021-11-25 19:42:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:42:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:42:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:42:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:42:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_link [2021-11-25 19:42:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_link [2021-11-25 19:42:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 19:42:10,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 19:42:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-25 19:42:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-25 19:42:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_int [2021-11-25 19:42:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_int [2021-11-25 19:42:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 19:42:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 19:42:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 19:42:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-25 19:42:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-25 19:42:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 19:42:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 19:42:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 19:42:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 19:42:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 19:42:10,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 19:42:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-25 19:42:10,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-25 19:42:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_nvram_access [2021-11-25 19:42:10,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_nvram_access [2021-11-25 19:42:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_mem [2021-11-25 19:42:10,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_mem [2021-11-25 19:42:10,210 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 19:42:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 19:42:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 19:42:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 19:42:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:42:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:42:10,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:42:10,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:42:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_nvram_lock [2021-11-25 19:42:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_nvram_lock [2021-11-25 19:42:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-25 19:42:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-25 19:42:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 19:42:10,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 19:42:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_work [2021-11-25 19:42:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_work [2021-11-25 19:42:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_fast_work [2021-11-25 19:42:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_fast_work [2021-11-25 19:42:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 19:42:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 19:42:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_avail [2021-11-25 19:42:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_avail [2021-11-25 19:42:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_link [2021-11-25 19:42:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_link [2021-11-25 19:42:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 19:42:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 19:42:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:42:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:42:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:42:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_report_link [2021-11-25 19:42:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_report_link [2021-11-25 19:42:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_phy [2021-11-25 19:42:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_phy [2021-11-25 19:42:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_phy [2021-11-25 19:42:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_phy [2021-11-25 19:42:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 19:42:10,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 19:42:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_rx_cons [2021-11-25 19:42:10,216 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_rx_cons [2021-11-25 19:42:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:42:10,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:42:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nvram [2021-11-25 19:42:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nvram [2021-11-25 19:42:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:42:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_ring_size [2021-11-25 19:42:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_ring_size [2021-11-25 19:42:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_power_state [2021-11-25 19:42:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_power_state [2021-11-25 19:42:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure load_cpu_fw [2021-11-25 19:42:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure load_cpu_fw [2021-11-25 19:42:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-25 19:42:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-25 19:42:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_remote_link [2021-11-25 19:42:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_remote_link [2021-11-25 19:42:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_write_phy [2021-11-25 19:42:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_write_phy [2021-11-25 19:42:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-25 19:42:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-25 19:42:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:42:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_tx_cons [2021-11-25 19:42:10,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_tx_cons [2021-11-25 19:42:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_info_field_size [2021-11-25 19:42:10,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_info_field_size [2021-11-25 19:42:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_fw_sync [2021-11-25 19:42:10,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_fw_sync [2021-11-25 19:42:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_wr [2021-11-25 19:42:10,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_wr [2021-11-25 19:42:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 19:42:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 19:42:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-25 19:42:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-25 19:42:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_5706s_force_link_dn [2021-11-25 19:42:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_5706s_force_link_dn [2021-11-25 19:42:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 19:42:10,237 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 19:42:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_link [2021-11-25 19:42:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_link [2021-11-25 19:42:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:42:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:42:10,238 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_phy_get_pause_adv [2021-11-25 19:42:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_phy_get_pause_adv [2021-11-25 19:42:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_remote_phy_event [2021-11-25 19:42:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_remote_phy_event [2021-11-25 19:42:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-25 19:42:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-25 19:42:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read [2021-11-25 19:42:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read [2021-11-25 19:42:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_stats64 [2021-11-25 19:42:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_stats64 [2021-11-25 19:42:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mac_addr [2021-11-25 19:42:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mac_addr [2021-11-25 19:42:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_fw_cap [2021-11-25 19:42:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_fw_cap [2021-11-25 19:42:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_rd_ind [2021-11-25 19:42:10,240 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_rd_ind [2021-11-25 19:42:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-25 19:42:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-25 19:42:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_write [2021-11-25 19:42:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_write [2021-11-25 19:42:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 19:42:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 19:42:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:42:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:42:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 19:42:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 19:42:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-25 19:42:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-25 19:42:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_cnic_irq_info [2021-11-25 19:42:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_cnic_irq_info [2021-11-25 19:42:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:42:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:42:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_suspend [2021-11-25 19:42:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_suspend [2021-11-25 19:42:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_forced_2g5 [2021-11-25 19:42:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_forced_2g5 [2021-11-25 19:42:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mtu [2021-11-25 19:42:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mtu [2021-11-25 19:42:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cnic_lock_of_bnx2 [2021-11-25 19:42:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cnic_lock_of_bnx2 [2021-11-25 19:42:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cnic_lock_of_bnx2 [2021-11-25 19:42:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cnic_lock_of_bnx2 [2021-11-25 19:42:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:42:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:42:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_stop [2021-11-25 19:42:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_stop [2021-11-25 19:42:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:42:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_ringparam [2021-11-25 19:42:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_ringparam [2021-11-25 19:42:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:42:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:42:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_find_max_ring [2021-11-25 19:42:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_find_max_ring [2021-11-25 19:42:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_coalesce [2021-11-25 19:42:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_coalesce [2021-11-25 19:42:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_send_heart_beat [2021-11-25 19:42:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_send_heart_beat [2021-11-25 19:42:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_slot_reset [2021-11-25 19:42:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_slot_reset [2021-11-25 19:42:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_page [2021-11-25 19:42:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_page [2021-11-25 19:42:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-25 19:42:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-25 19:42:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 19:42:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 19:42:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 19:42:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 19:42:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 19:42:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 19:42:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_firmware [2021-11-25 19:42:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_firmware [2021-11-25 19:42:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 19:42:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 19:42:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-25 19:42:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-25 19:42:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shutdown_chip [2021-11-25 19:42:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shutdown_chip [2021-11-25 19:42:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_mem [2021-11-25 19:42:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_mem [2021-11-25 19:42:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 19:42:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 19:42:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_coalesce [2021-11-25 19:42:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_coalesce [2021-11-25 19:42:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-25 19:42:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-25 19:42:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-25 19:42:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-25 19:42:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 19:42:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 19:42:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 19:42:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 19:42:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:42:10,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:42:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-25 19:42:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-25 19:42:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 19:42:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 19:42:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:42:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_irq [2021-11-25 19:42:10,265 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_irq [2021-11-25 19:42:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure poll_bnx2 [2021-11-25 19:42:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_bnx2 [2021-11-25 19:42:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-25 19:42:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-25 19:42:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_features [2021-11-25 19:42:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_features [2021-11-25 19:42:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_ring_size [2021-11-25 19:42:10,266 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_ring_size [2021-11-25 19:42:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_dump_mcp_state [2021-11-25 19:42:10,267 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_dump_mcp_state [2021-11-25 19:42:12,251 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:42:12,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:42:12,954 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:45:18,747 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:45:31,343 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:45:31,343 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:45:31,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:45:31 BoogieIcfgContainer [2021-11-25 19:45:31,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:45:31,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:45:31,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:45:31,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:45:31,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:41:58" (1/3) ... [2021-11-25 19:45:31,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71770d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:45:31, skipping insertion in model container [2021-11-25 19:45:31,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:42:07" (2/3) ... [2021-11-25 19:45:31,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71770d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:45:31, skipping insertion in model container [2021-11-25 19:45:31,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:45:31" (3/3) ... [2021-11-25 19:45:31,365 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--broadcom--bnx2.ko-entry_point.cil.out.i [2021-11-25 19:45:31,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:45:31,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:45:31,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:45:31,468 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:45:31,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:45:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 4243 states, 2591 states have (on average 1.3068313392512543) internal successors, (3386), 2664 states have internal predecessors, (3386), 1421 states have call successors, (1421), 230 states have call predecessors, (1421), 229 states have return successors, (1413), 1410 states have call predecessors, (1413), 1413 states have call successors, (1413) [2021-11-25 19:45:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-25 19:45:31,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:45:31,658 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:45:31,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:45:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:45:31,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2103697089, now seen corresponding path program 1 times [2021-11-25 19:45:31,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:45:31,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307887972] [2021-11-25 19:45:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:45:31,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:45:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:45:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-25 19:45:33,621 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:45:33,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307887972] [2021-11-25 19:45:33,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307887972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:45:33,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:45:33,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:45:33,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369243837] [2021-11-25 19:45:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:45:33,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:45:33,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:45:33,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:45:33,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:45:33,685 INFO L87 Difference]: Start difference. First operand has 4243 states, 2591 states have (on average 1.3068313392512543) internal successors, (3386), 2664 states have internal predecessors, (3386), 1421 states have call successors, (1421), 230 states have call predecessors, (1421), 229 states have return successors, (1413), 1410 states have call predecessors, (1413), 1413 states have call successors, (1413) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-25 19:45:35,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:45:39,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:45:41,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:45:48,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:45:50,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:45:53,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:45:56,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:00,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:02,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:04,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:07,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:13,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:15,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:17,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:46:18,652 INFO L93 Difference]: Finished difference Result 12401 states and 18287 transitions. [2021-11-25 19:46:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:46:18,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 259 [2021-11-25 19:46:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:46:18,821 INFO L225 Difference]: With dead ends: 12401 [2021-11-25 19:46:18,822 INFO L226 Difference]: Without dead ends: 8174 [2021-11-25 19:46:18,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:46:18,897 INFO L933 BasicCegarLoop]: 7810 mSDtfsCounter, 5779 mSDsluCounter, 6190 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5791 SdHoareTripleChecker+Valid, 13448 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:46:18,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5791 Valid, 13448 Invalid, 1216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1204 Invalid, 9 Unknown, 0 Unchecked, 44.2s Time] [2021-11-25 19:46:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2021-11-25 19:46:19,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 8167. [2021-11-25 19:46:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8167 states, 5001 states have (on average 1.302739452109578) internal successors, (6515), 5121 states have internal predecessors, (6515), 2717 states have call successors, (2717), 451 states have call predecessors, (2717), 448 states have return successors, (2718), 2702 states have call predecessors, (2718), 2711 states have call successors, (2718) [2021-11-25 19:46:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8167 states to 8167 states and 11950 transitions. [2021-11-25 19:46:20,091 INFO L78 Accepts]: Start accepts. Automaton has 8167 states and 11950 transitions. Word has length 259 [2021-11-25 19:46:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:46:20,100 INFO L470 AbstractCegarLoop]: Abstraction has 8167 states and 11950 transitions. [2021-11-25 19:46:20,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-25 19:46:20,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8167 states and 11950 transitions. [2021-11-25 19:46:20,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-25 19:46:20,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:46:20,122 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:46:20,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:46:20,123 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:46:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:46:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2128194911, now seen corresponding path program 1 times [2021-11-25 19:46:20,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:46:20,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225492119] [2021-11-25 19:46:20,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:46:20,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:46:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:46:21,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-25 19:46:21,534 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:46:21,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225492119] [2021-11-25 19:46:21,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225492119] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:46:21,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:46:21,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:46:21,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428993567] [2021-11-25 19:46:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:46:21,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:46:21,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:46:21,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:46:21,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:46:21,539 INFO L87 Difference]: Start difference. First operand 8167 states and 11950 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 19:46:23,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:26,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:28,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:36,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:45,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:47,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:49,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:52,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:55,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:46:58,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:00,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:47:01,401 INFO L93 Difference]: Finished difference Result 24018 states and 35394 transitions. [2021-11-25 19:47:01,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:47:01,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 280 [2021-11-25 19:47:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:47:01,620 INFO L225 Difference]: With dead ends: 24018 [2021-11-25 19:47:01,620 INFO L226 Difference]: Without dead ends: 15900 [2021-11-25 19:47:01,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:47:01,717 INFO L933 BasicCegarLoop]: 7127 mSDtfsCounter, 5735 mSDsluCounter, 6071 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 12651 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:47:01,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 12651 Invalid, 1149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1135 Invalid, 9 Unknown, 0 Unchecked, 39.2s Time] [2021-11-25 19:47:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15900 states. [2021-11-25 19:47:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15900 to 15886. [2021-11-25 19:47:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15886 states, 9741 states have (on average 1.302638332820039) internal successors, (12689), 9961 states have internal predecessors, (12689), 5275 states have call successors, (5275), 880 states have call predecessors, (5275), 869 states have return successors, (5369), 5246 states have call predecessors, (5369), 5267 states have call successors, (5369) [2021-11-25 19:47:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15886 states to 15886 states and 23333 transitions. [2021-11-25 19:47:03,056 INFO L78 Accepts]: Start accepts. Automaton has 15886 states and 23333 transitions. Word has length 280 [2021-11-25 19:47:03,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:47:03,059 INFO L470 AbstractCegarLoop]: Abstraction has 15886 states and 23333 transitions. [2021-11-25 19:47:03,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 19:47:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 15886 states and 23333 transitions. [2021-11-25 19:47:03,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-25 19:47:03,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:47:03,076 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:47:03,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:47:03,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:47:03,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:47:03,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1422943560, now seen corresponding path program 1 times [2021-11-25 19:47:03,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:47:03,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508812802] [2021-11-25 19:47:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:47:03,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:47:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:47:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-25 19:47:03,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:47:03,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508812802] [2021-11-25 19:47:03,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508812802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:47:03,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:47:03,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:47:03,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943567467] [2021-11-25 19:47:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:47:03,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:47:03,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:47:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:47:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:47:03,833 INFO L87 Difference]: Start difference. First operand 15886 states and 23333 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:47:05,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:08,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:10,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:15,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:17,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:19,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:21,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:28,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:30,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:32,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:37,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:40,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:42,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:43,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:47:43,979 INFO L93 Difference]: Finished difference Result 31518 states and 46293 transitions. [2021-11-25 19:47:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:47:43,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 275 [2021-11-25 19:47:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:47:44,232 INFO L225 Difference]: With dead ends: 31518 [2021-11-25 19:47:44,232 INFO L226 Difference]: Without dead ends: 31515 [2021-11-25 19:47:44,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:47:44,261 INFO L933 BasicCegarLoop]: 7939 mSDtfsCounter, 5813 mSDsluCounter, 6093 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5825 SdHoareTripleChecker+Valid, 13480 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:47:44,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5825 Valid, 13480 Invalid, 1225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1216 Invalid, 8 Unknown, 0 Unchecked, 39.3s Time] [2021-11-25 19:47:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31515 states. [2021-11-25 19:47:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31515 to 31499. [2021-11-25 19:47:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31499 states, 19322 states have (on average 1.3032294793499637) internal successors, (25181), 19758 states have internal predecessors, (25181), 10447 states have call successors, (10447), 1752 states have call predecessors, (10447), 1729 states have return successors, (10647), 10390 states have call predecessors, (10647), 10439 states have call successors, (10647) [2021-11-25 19:47:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31499 states to 31499 states and 46275 transitions. [2021-11-25 19:47:46,812 INFO L78 Accepts]: Start accepts. Automaton has 31499 states and 46275 transitions. Word has length 275 [2021-11-25 19:47:46,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:47:46,817 INFO L470 AbstractCegarLoop]: Abstraction has 31499 states and 46275 transitions. [2021-11-25 19:47:46,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:47:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 31499 states and 46275 transitions. [2021-11-25 19:47:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-25 19:47:46,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:47:46,829 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:47:46,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:47:46,830 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:47:46,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:47:46,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1159334285, now seen corresponding path program 1 times [2021-11-25 19:47:46,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:47:46,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361315095] [2021-11-25 19:47:46,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:47:46,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:47:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:47:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-25 19:47:47,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:47:47,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361315095] [2021-11-25 19:47:47,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361315095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:47:47,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:47:47,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:47:47,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454122696] [2021-11-25 19:47:47,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:47:47,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:47:47,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:47:47,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:47:47,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:47:47,923 INFO L87 Difference]: Start difference. First operand 31499 states and 46275 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:47:51,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:47:54,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:00,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:02,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:04,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:08,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:10,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:13,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:15,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:17,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:22,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:25,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:27,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:48:28,866 INFO L93 Difference]: Finished difference Result 31519 states and 46294 transitions. [2021-11-25 19:48:28,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:48:28,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 276 [2021-11-25 19:48:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:48:29,282 INFO L225 Difference]: With dead ends: 31519 [2021-11-25 19:48:29,283 INFO L226 Difference]: Without dead ends: 31516 [2021-11-25 19:48:29,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:48:29,306 INFO L933 BasicCegarLoop]: 7936 mSDtfsCounter, 5805 mSDsluCounter, 6095 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5820 SdHoareTripleChecker+Valid, 13480 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:48:29,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5820 Valid, 13480 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1213 Invalid, 10 Unknown, 0 Unchecked, 40.1s Time] [2021-11-25 19:48:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31516 states. [2021-11-25 19:48:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31516 to 31500. [2021-11-25 19:48:31,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31500 states, 19323 states have (on average 1.3032137866790872) internal successors, (25182), 19759 states have internal predecessors, (25182), 10447 states have call successors, (10447), 1752 states have call predecessors, (10447), 1729 states have return successors, (10647), 10390 states have call predecessors, (10647), 10439 states have call successors, (10647) [2021-11-25 19:48:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31500 states to 31500 states and 46276 transitions. [2021-11-25 19:48:31,863 INFO L78 Accepts]: Start accepts. Automaton has 31500 states and 46276 transitions. Word has length 276 [2021-11-25 19:48:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:48:31,864 INFO L470 AbstractCegarLoop]: Abstraction has 31500 states and 46276 transitions. [2021-11-25 19:48:31,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:48:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 31500 states and 46276 transitions. [2021-11-25 19:48:31,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-25 19:48:31,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:48:31,877 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:48:31,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:48:31,878 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:48:31,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:48:31,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1577386219, now seen corresponding path program 1 times [2021-11-25 19:48:31,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:48:31,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47815110] [2021-11-25 19:48:31,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:48:31,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:48:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:48:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2021-11-25 19:48:32,548 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:48:32,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47815110] [2021-11-25 19:48:32,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47815110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:48:32,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:48:32,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:48:32,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294161242] [2021-11-25 19:48:32,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:48:32,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:48:32,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:48:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:48:32,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:48:32,550 INFO L87 Difference]: Start difference. First operand 31500 states and 46276 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:48:36,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:38,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:44,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:46,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:48,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:50,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:51,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:54,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:48:57,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:00,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:02,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:04,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:09,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:12,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:14,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:49:16,288 INFO L93 Difference]: Finished difference Result 31520 states and 46294 transitions. [2021-11-25 19:49:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:49:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 277 [2021-11-25 19:49:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:49:16,617 INFO L225 Difference]: With dead ends: 31520 [2021-11-25 19:49:16,617 INFO L226 Difference]: Without dead ends: 31512 [2021-11-25 19:49:16,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:49:16,638 INFO L933 BasicCegarLoop]: 7938 mSDtfsCounter, 5807 mSDsluCounter, 6099 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5819 SdHoareTripleChecker+Valid, 13485 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:49:16,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5819 Valid, 13485 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1213 Invalid, 10 Unknown, 0 Unchecked, 42.9s Time] [2021-11-25 19:49:16,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31512 states. [2021-11-25 19:49:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31512 to 31496. [2021-11-25 19:49:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31496 states, 19319 states have (on average 1.3030695170557482) internal successors, (25174), 19755 states have internal predecessors, (25174), 10447 states have call successors, (10447), 1752 states have call predecessors, (10447), 1729 states have return successors, (10647), 10390 states have call predecessors, (10647), 10439 states have call successors, (10647) [2021-11-25 19:49:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31496 states to 31496 states and 46268 transitions. [2021-11-25 19:49:19,084 INFO L78 Accepts]: Start accepts. Automaton has 31496 states and 46268 transitions. Word has length 277 [2021-11-25 19:49:19,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:49:19,086 INFO L470 AbstractCegarLoop]: Abstraction has 31496 states and 46268 transitions. [2021-11-25 19:49:19,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 19:49:19,087 INFO L276 IsEmpty]: Start isEmpty. Operand 31496 states and 46268 transitions. [2021-11-25 19:49:19,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-25 19:49:19,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:49:19,103 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:49:19,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:49:19,104 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:49:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:49:19,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1139945895, now seen corresponding path program 1 times [2021-11-25 19:49:19,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:49:19,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551208986] [2021-11-25 19:49:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:49:19,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:49:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:49:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-25 19:49:19,812 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:49:19,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551208986] [2021-11-25 19:49:19,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551208986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:49:19,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:49:19,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:49:19,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760471010] [2021-11-25 19:49:19,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:49:19,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:49:19,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:49:19,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:49:19,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:49:19,815 INFO L87 Difference]: Start difference. First operand 31496 states and 46268 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 19:49:22,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:25,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:28,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:31,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:33,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:40,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:42,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:44,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:46,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:53,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:55,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:57,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:00,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:02,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:04,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:04,381 INFO L93 Difference]: Finished difference Result 90974 states and 133264 transitions. [2021-11-25 19:50:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:50:04,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 287 [2021-11-25 19:50:04,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:04,757 INFO L225 Difference]: With dead ends: 90974 [2021-11-25 19:50:04,757 INFO L226 Difference]: Without dead ends: 59527 [2021-11-25 19:50:05,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:05,146 INFO L933 BasicCegarLoop]: 7536 mSDtfsCounter, 5216 mSDsluCounter, 6094 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 13090 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:05,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5228 Valid, 13090 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1236 Invalid, 11 Unknown, 0 Unchecked, 42.5s Time] [2021-11-25 19:50:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59527 states. [2021-11-25 19:50:07,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59527 to 59492. [2021-11-25 19:50:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59492 states, 36343 states have (on average 1.29631565913656) internal successors, (47112), 37203 states have internal predecessors, (47112), 19759 states have call successors, (19759), 3424 states have call predecessors, (19759), 3389 states have return successors, (20151), 19662 states have call predecessors, (20151), 19751 states have call successors, (20151) [2021-11-25 19:50:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59492 states to 59492 states and 87022 transitions. [2021-11-25 19:50:08,838 INFO L78 Accepts]: Start accepts. Automaton has 59492 states and 87022 transitions. Word has length 287 [2021-11-25 19:50:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:08,840 INFO L470 AbstractCegarLoop]: Abstraction has 59492 states and 87022 transitions. [2021-11-25 19:50:08,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 19:50:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 59492 states and 87022 transitions. [2021-11-25 19:50:08,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-25 19:50:08,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:08,852 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:08,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:50:08,852 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:08,853 INFO L85 PathProgramCache]: Analyzing trace with hash -850978374, now seen corresponding path program 1 times [2021-11-25 19:50:08,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:08,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38147152] [2021-11-25 19:50:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:08,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:50:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:50:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2021-11-25 19:50:09,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:50:09,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38147152] [2021-11-25 19:50:09,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38147152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:50:09,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:50:09,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:50:09,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348566166] [2021-11-25 19:50:09,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:50:09,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:50:09,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:50:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:50:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:09,797 INFO L87 Difference]: Start difference. First operand 59492 states and 87022 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 19:50:11,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:13,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:17,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:20,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:21,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:25,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:31,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:34,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:38,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:45,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:48,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:50,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:52,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:54,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:58,148 INFO L93 Difference]: Finished difference Result 113104 states and 163492 transitions. [2021-11-25 19:50:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:50:58,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 296 [2021-11-25 19:50:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:58,885 INFO L225 Difference]: With dead ends: 113104 [2021-11-25 19:50:58,885 INFO L226 Difference]: Without dead ends: 77756 [2021-11-25 19:50:59,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:59,080 INFO L933 BasicCegarLoop]: 8344 mSDtfsCounter, 3423 mSDsluCounter, 6037 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 2 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3433 SdHoareTripleChecker+Valid, 13836 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:59,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3433 Valid, 13836 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1403 Invalid, 12 Unknown, 0 Unchecked, 45.7s Time] [2021-11-25 19:50:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77756 states. [2021-11-25 19:51:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77756 to 77686. [2021-11-25 19:51:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77686 states, 47362 states have (on average 1.288269076474811) internal successors, (61015), 48547 states have internal predecessors, (61015), 25766 states have call successors, (25766), 4614 states have call predecessors, (25766), 4557 states have return successors, (26196), 25598 states have call predecessors, (26196), 25755 states have call successors, (26196) [2021-11-25 19:51:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77686 states to 77686 states and 112977 transitions. [2021-11-25 19:51:04,185 INFO L78 Accepts]: Start accepts. Automaton has 77686 states and 112977 transitions. Word has length 296 [2021-11-25 19:51:04,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:51:04,186 INFO L470 AbstractCegarLoop]: Abstraction has 77686 states and 112977 transitions. [2021-11-25 19:51:04,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 19:51:04,186 INFO L276 IsEmpty]: Start isEmpty. Operand 77686 states and 112977 transitions. [2021-11-25 19:51:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-25 19:51:04,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:51:04,204 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:51:04,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:51:04,205 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:51:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:51:04,205 INFO L85 PathProgramCache]: Analyzing trace with hash 778231750, now seen corresponding path program 1 times [2021-11-25 19:51:04,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:51:04,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806104825] [2021-11-25 19:51:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:51:04,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2021-11-25 19:51:05,853 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806104825] [2021-11-25 19:51:05,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806104825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:05,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:05,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:51:05,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066837093] [2021-11-25 19:51:05,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:05,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:51:05,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:05,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:51:05,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:51:05,855 INFO L87 Difference]: Start difference. First operand 77686 states and 112977 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 19:51:08,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:11,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:13,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:18,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:24,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:26,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:28,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:32,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:38,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:40,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:43,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:45,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:47,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:52,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:51:55,593 INFO L93 Difference]: Finished difference Result 193967 states and 282105 transitions. [2021-11-25 19:51:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:51:55,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 323 [2021-11-25 19:51:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:51:56,363 INFO L225 Difference]: With dead ends: 193967 [2021-11-25 19:51:56,363 INFO L226 Difference]: Without dead ends: 116330 [2021-11-25 19:51:56,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:51:56,991 INFO L933 BasicCegarLoop]: 7612 mSDtfsCounter, 5770 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 13228 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:51:56,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5783 Valid, 13228 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1185 Invalid, 11 Unknown, 0 Unchecked, 45.0s Time] [2021-11-25 19:51:57,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116330 states. [2021-11-25 19:52:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116330 to 116250. [2021-11-25 19:52:03,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116250 states, 70878 states have (on average 1.2884110725471938) internal successors, (91320), 72669 states have internal predecessors, (91320), 38564 states have call successors, (38564), 6900 states have call predecessors, (38564), 6807 states have return successors, (39220), 38282 states have call predecessors, (39220), 38553 states have call successors, (39220) [2021-11-25 19:52:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116250 states to 116250 states and 169104 transitions. [2021-11-25 19:52:05,391 INFO L78 Accepts]: Start accepts. Automaton has 116250 states and 169104 transitions. Word has length 323 [2021-11-25 19:52:05,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:52:05,391 INFO L470 AbstractCegarLoop]: Abstraction has 116250 states and 169104 transitions. [2021-11-25 19:52:05,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 19:52:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand 116250 states and 169104 transitions. [2021-11-25 19:52:05,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-25 19:52:05,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:52:05,410 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:52:05,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:52:05,411 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:52:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:52:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash -562541731, now seen corresponding path program 1 times [2021-11-25 19:52:05,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:52:05,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379484576] [2021-11-25 19:52:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:52:05,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:52:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:52:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2021-11-25 19:52:06,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:52:06,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379484576] [2021-11-25 19:52:06,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379484576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:52:06,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:52:06,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:52:06,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98012601] [2021-11-25 19:52:06,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:52:06,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:52:06,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:52:06,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:52:06,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:52:06,265 INFO L87 Difference]: Start difference. First operand 116250 states and 169104 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 19:52:08,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:10,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:12,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:15,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:19,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:24,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:29,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:33,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:39,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:41,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:44,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:46,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:48,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:52:56,086 INFO L93 Difference]: Finished difference Result 233931 states and 340060 transitions. [2021-11-25 19:52:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:52:56,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 325 [2021-11-25 19:52:56,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:52:57,232 INFO L225 Difference]: With dead ends: 233931 [2021-11-25 19:52:57,232 INFO L226 Difference]: Without dead ends: 117730 [2021-11-25 19:52:57,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:52:57,772 INFO L933 BasicCegarLoop]: 7624 mSDtfsCounter, 5770 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5782 SdHoareTripleChecker+Valid, 13240 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:52:57,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5782 Valid, 13240 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1187 Invalid, 9 Unknown, 0 Unchecked, 44.3s Time] [2021-11-25 19:52:57,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117730 states. [2021-11-25 19:53:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117730 to 117642. [2021-11-25 19:53:04,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117642 states, 71682 states have (on average 1.2874082754387433) internal successors, (92284), 73521 states have internal predecessors, (92284), 38996 states have call successors, (38996), 7052 states have call predecessors, (38996), 6963 states have return successors, (39644), 38710 states have call predecessors, (39644), 38985 states have call successors, (39644) [2021-11-25 19:53:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117642 states to 117642 states and 170924 transitions. [2021-11-25 19:53:06,170 INFO L78 Accepts]: Start accepts. Automaton has 117642 states and 170924 transitions. Word has length 325 [2021-11-25 19:53:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:53:06,171 INFO L470 AbstractCegarLoop]: Abstraction has 117642 states and 170924 transitions. [2021-11-25 19:53:06,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 19:53:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 117642 states and 170924 transitions. [2021-11-25 19:53:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-25 19:53:06,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:53:06,189 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:53:06,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:53:06,190 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:53:06,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:53:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2034323700, now seen corresponding path program 1 times [2021-11-25 19:53:06,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:53:06,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620444752] [2021-11-25 19:53:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:53:06,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:53:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:53:07,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2021-11-25 19:53:07,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:53:07,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620444752] [2021-11-25 19:53:07,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620444752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:53:07,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:53:07,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:53:07,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200022420] [2021-11-25 19:53:07,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:53:07,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:53:07,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:53:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:53:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:53:07,345 INFO L87 Difference]: Start difference. First operand 117642 states and 170924 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-25 19:53:10,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:53:13,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:53:16,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:53:24,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:53:26,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:53:32,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []